Stoker



June 18, 1940. H. p ANDERSON 2,204,541

' STOKER Original Filed March 2a, 1953 2 Sheets-Sheet 1 IN V EN TOR. Howard flndekson, deceased. 6 7 Bern dine finders on, Ekecufnk.

A TTORNEYS.

IN V EN TOR.

Patented June 18, 1940 5 permit power and manual feeding of Howard P. Anderson,

deceased, late of Erie, Pa.,

by Bernadine Anderson, executrix, Dallas, Tex, assignor to The Standard Stoker Company,

Inc., New York, N. ware Y., a corporation of Dela- Original application March 28, 1933, Serial No..

663,131. Divided and this application April 17, 1937, SerialNo. 137,4711

This invention relates to stokers and more particularly to stokers, arranged to deliver. fuel to a furnace through the lower portion of an opening in an upstanding wall thereof the fuel.

It is an object of the invention to provide an improved stoker arranged with a firedoor to occupy a, minimum of space at the firing opening to permit the use of smaller firing openings than it: heretofore employed.

More specifically it is an object of the invention to provide a novel stoker conduit communicating with the lower portion of a furnace firing opening, the conduit having a novel hinged cover, and

,;1 a particularly designed firedoor for the upper portion of the firing opening, the hinged cover and firedoor cooperating to arrest upward movement of the former by the fuel stream passing through the conduit and preventing accidental blowing out of the latter, as when an explosion occurs in the boiler firebox. p

With the above and other objects in view, the invention resides in the construction of the individual elements and their relation one with another as will be apparent from the following description when read in connection with the accompanying drawings, wherein Fig. 1 is a view in vertical longitudinal section of a portion of a locomotive with the stoker shown in operative position, parts of the stoker being in elevation and partsbroken away;

Fig. 2 is a view in end elevation of the stoker looking toward the firebox; a

Fig. 3 is a sectional View taken on the line 3-3 of Fig. 1; and

Fig. 4 is a sectional view taken on the line 44 of Fig. 1.

In the drawings, the locomotive is indicated generally by the numeral l and includes the backhead 11 of the firebox l5, constituting a rear water leg of the locomotive boiler. The backhead 11 has an opening 16 therethrough arranged to form both a hand firing opening and a stoker firing opening.

Afiredoor frame 15 embraces the firing opening 16 in the boiler backhead I1, the lower portion of the frame being arranged to. receive the stoker riser conduit 18. At its upper end, the riser conduit 18 is provided with a cover or hood 19 which is hinged to the rear Wall 80 'of the riser conduit on the transversely extending pins 8|. The cover 19 is arcuate in transverse cross section and a flange or bead 82 is formed slightly rearward of the forward end of the cover and is in spaced relation with the flredoor frame 15.

arranged to 3 Claims. (01. 110 -104) Mounted on theframe 15 is a pneumatically operated'firedoor 83 which consists of the pivotally mounted} door sections M, 85. The door sections 84, 85fit snugly between the frame i and the flange 82 and have theirlower portions cut away as at 85 to conform with the arcuate-shaped top wall 81: of the cover .iil. .By thisarrangementpthe bead 82 preventstheoutward thrust of the firedoor 83 when an explosion occurs in the boiler firebox, while thelower portion of the firedoor engages the forward end of the cover 19 and arrests its upward movement by the fuel streampassing through the riser conduit. Thus, the firedoor 183. forms a closure forthe upper portion of the firing opening it and when the fireman finds it necessary to inspect the condition of the fire or to supply fuel manually, the flredoor BS may be opened by power or manually by the handle 88. The portion of the firing opening thus exposed is suflicient for such purposes. When it is necessary to gain access to the interior of the firebox for the purpose of making inspection or repairs of the grates, firebox sheets or flues, the firedoor 83 may be opened in the usual manner and the cover or hood l9 swung rearwardly, thereby uncovering the entire opening.

The riser conduit '18 is received by the frame in a novel manner which permits said conduit to be conveniently located with respect to the firing opening. For this purpose, the frame 15 is provided with side flanges 89, 9t] and the riser conduit has formed therewith the flanges SI, 92. In erecting the stoker, a rod 93 is passed through the flanges 89, 90, 9| and 92 and the riser may then be turned about this rod until the desired position of the riser has been established. Bolts such as 94 and 95 are then passed throughthe flanges 89 and 9i) of the frame and are threaded into the side flanges 9| and 92 of the riser 18 whereby a rigid connection is obtained.

for preventing coal from spilling over the side edges of the plate.

From the foregoing it will be realized that a novel stoker for feeding fuel through the firing opening has been constructed which is of a simple and durable nature and inwhich the parts are so organized that access to the firebox may be made conveniently. The appended claims define the scope of the present invention.

This application is a division of Howard P. Andersons co-pending application Serial No. 663,131, filed March 28, 1933, for improvements in Stokers, now Patent No. 2,081,113, granted May 18, 1937.

It is claimed:

1. In a locomotive provided with a firebox having a firing opening in the backwall thereof, a stoker comprising an upwardly and forwardly extending fuel feed casing communicating with the lower portion of said firing opening, said casing having a separable upper portion forming a cover over the upper end of the casing, said cover being concave in configuration and arcuate in transverse and longitudinal vertical cross section, said cover being hinged to the upper rearward end of said casing forrearward swinging movement about ahorizontal transverse axis, and a firedoor for the upper portion of said firing opening, the lower edge of said firedoor having an arcuate centrally disposed indentation conforming with the shape of said cover and fitting closely thereagainst.

2. In a locomotive provided with a firebox having a firing opening in the backwall thereof, a

stoker comprising an upwardly and forwardly extending fuel feed. casing communicating with the lower portion of said firing opening, said casing having a separable upperportion forming a cover over the upper end of the: casing, said cover being. concave in configuration and arcuate in transverse and longitudinal vertical cross section, said cover being hinged to the upper rearward end of said casing for rearward swinging movement about a horizontal transverse axis, said cover having an arcuate transverse upstanding flange near its forward end, and a firedoor for the upper portion of said firing opening, the lower edge of said door being included between said flange and said firing opening and having an arcuatejcentrally disposed indentation to conform'with'that portion of the cover extending forwardly from said flange and fitting closely against the arcuate surface of the said portion of said cover, said door being arranged to swing laterally and upwardly.

3. In a locomotive provided with a firebox having afiring opening in the backwall thereof, a

frame embracing said firing opening, an upwardly and forwardly extending fuel feed casing communicating with the lower portion of said firing opening, said casing having a separable upper portion forming a cover over the upper end of the casing, said cover being concave in configuration and arcuate in transverse and longitudinal cross section, said cover being hinged to the upper rearward end'of said casing for rearward swinging movement about a horizontal BERNADIN'E ANDERSON, Executrix of the Estate of Howard P. Anderson,

Deceased. 

